[5017] | 1 | #region License Information
|
---|
| 2 | /* HeuristicLab
|
---|
[12009] | 3 | * Copyright (C) 2002-2015 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
|
---|
[5017] | 4 | *
|
---|
| 5 | * This file is part of HeuristicLab.
|
---|
| 6 | *
|
---|
| 7 | * HeuristicLab is free software: you can redistribute it and/or modify
|
---|
| 8 | * it under the terms of the GNU General Public License as published by
|
---|
| 9 | * the Free Software Foundation, either version 3 of the License, or
|
---|
| 10 | * (at your option) any later version.
|
---|
| 11 | *
|
---|
| 12 | * HeuristicLab is distributed in the hope that it will be useful,
|
---|
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
---|
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
---|
| 15 | * GNU General Public License for more details.
|
---|
| 16 | *
|
---|
| 17 | * You should have received a copy of the GNU General Public License
|
---|
| 18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
|
---|
| 19 | */
|
---|
| 20 | #endregion
|
---|
| 21 |
|
---|
[7695] | 22 | using System.Globalization;
|
---|
[5017] | 23 | using System.Text;
|
---|
[7695] | 24 | using HeuristicLab.Common;
|
---|
[5017] | 25 | using HeuristicLab.Core;
|
---|
[7695] | 26 | using HeuristicLab.Encodings.SymbolicExpressionTreeEncoding;
|
---|
[5017] | 27 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
|
---|
| 28 |
|
---|
[5745] | 29 | namespace HeuristicLab.Problems.DataAnalysis.Symbolic {
|
---|
[5017] | 30 |
|
---|
[5745] | 31 | [Item("MATLAB String Formatter", "String formatter for string representations of symbolic data analysis expressions in MATLAB syntax.")]
|
---|
[5431] | 32 | [StorableClass]
|
---|
[5745] | 33 | public sealed class SymbolicDataAnalysisExpressionMATLABFormatter : NamedItem, ISymbolicExpressionTreeStringFormatter {
|
---|
[5431] | 34 | private int currentLag;
|
---|
[5017] | 35 |
|
---|
[5431] | 36 | [StorableConstructor]
|
---|
[5745] | 37 | private SymbolicDataAnalysisExpressionMATLABFormatter(bool deserializing) : base(deserializing) { }
|
---|
| 38 | private SymbolicDataAnalysisExpressionMATLABFormatter(SymbolicDataAnalysisExpressionMATLABFormatter original, Cloner cloner) : base(original, cloner) { }
|
---|
| 39 | public SymbolicDataAnalysisExpressionMATLABFormatter()
|
---|
[5019] | 40 | : base() {
|
---|
[5745] | 41 | Name = ItemName;
|
---|
| 42 | Description = ItemDescription;
|
---|
[5017] | 43 | }
|
---|
[5431] | 44 | public override IDeepCloneable Clone(Cloner cloner) {
|
---|
[5745] | 45 | return new SymbolicDataAnalysisExpressionMATLABFormatter(this, cloner);
|
---|
[5431] | 46 | }
|
---|
| 47 | private int currentIndexNumber;
|
---|
| 48 | public string CurrentIndexVariable {
|
---|
| 49 | get {
|
---|
| 50 | return "i" + currentIndexNumber;
|
---|
| 51 | }
|
---|
| 52 | }
|
---|
| 53 | private void ReleaseIndexVariable() {
|
---|
| 54 | currentIndexNumber--;
|
---|
| 55 | }
|
---|
[5017] | 56 |
|
---|
[5431] | 57 | private string AllocateIndexVariable() {
|
---|
| 58 | currentIndexNumber++;
|
---|
| 59 | return CurrentIndexVariable;
|
---|
| 60 | }
|
---|
| 61 |
|
---|
[5745] | 62 | public string Format(ISymbolicExpressionTree symbolicExpressionTree) {
|
---|
[5431] | 63 | currentLag = 0;
|
---|
| 64 | currentIndexNumber = 0;
|
---|
[7630] | 65 |
|
---|
| 66 | var stringBuilder = new StringBuilder();
|
---|
| 67 | stringBuilder.AppendLine("rows = ???");
|
---|
| 68 | stringBuilder.AppendLine(FormatOnlyExpression(symbolicExpressionTree.Root) + ";");
|
---|
| 69 | stringBuilder.AppendLine();
|
---|
| 70 | stringBuilder.AppendLine("function y = log_(x)");
|
---|
| 71 | stringBuilder.AppendLine(" if(x<=0) y = NaN;");
|
---|
| 72 | stringBuilder.AppendLine(" else y = log(x);");
|
---|
| 73 | stringBuilder.AppendLine(" end");
|
---|
| 74 | stringBuilder.AppendLine("end");
|
---|
| 75 | stringBuilder.AppendLine();
|
---|
| 76 | stringBuilder.AppendLine("function y = fivePoint(f0, f1, f3, f4)");
|
---|
| 77 | stringBuilder.AppendLine(" y = (f0 + 2*f1 - 2*f3 - f4) / 8;");
|
---|
| 78 | stringBuilder.AppendLine("end");
|
---|
| 79 | return stringBuilder.ToString();
|
---|
[5017] | 80 | }
|
---|
| 81 |
|
---|
[7695] | 82 | public string FormatOnlyExpression(ISymbolicExpressionTreeNode expressionNode) {
|
---|
[7630] | 83 | var stringBuilder = new StringBuilder();
|
---|
| 84 | stringBuilder.AppendLine(" for " + CurrentIndexVariable + " = 1:1:rows");
|
---|
| 85 | stringBuilder.AppendLine(" estimated(" + CurrentIndexVariable + ") = " + FormatRecursively(expressionNode.GetSubtree(0)) + ";");
|
---|
| 86 | stringBuilder.AppendLine(" end;");
|
---|
| 87 | return stringBuilder.ToString();
|
---|
| 88 | }
|
---|
| 89 |
|
---|
[5745] | 90 | private string FormatRecursively(ISymbolicExpressionTreeNode node) {
|
---|
| 91 | ISymbol symbol = node.Symbol;
|
---|
[5017] | 92 | StringBuilder stringBuilder = new StringBuilder();
|
---|
| 93 |
|
---|
| 94 | if (symbol is ProgramRootSymbol) {
|
---|
[7630] | 95 | stringBuilder.AppendLine(FormatRecursively(node.GetSubtree(0)));
|
---|
| 96 | } else if (symbol is StartSymbol)
|
---|
[5745] | 97 | return FormatRecursively(node.GetSubtree(0));
|
---|
[7630] | 98 | else if (symbol is Addition) {
|
---|
| 99 | stringBuilder.Append("(");
|
---|
[6803] | 100 | for (int i = 0; i < node.SubtreeCount; i++) {
|
---|
[5017] | 101 | if (i > 0) stringBuilder.Append("+");
|
---|
[5745] | 102 | stringBuilder.Append(FormatRecursively(node.GetSubtree(i)));
|
---|
[5017] | 103 | }
|
---|
[7630] | 104 | stringBuilder.Append(")");
|
---|
[5017] | 105 | } else if (symbol is And) {
|
---|
[5021] | 106 | stringBuilder.Append("((");
|
---|
[6803] | 107 | for (int i = 0; i < node.SubtreeCount; i++) {
|
---|
[5017] | 108 | if (i > 0) stringBuilder.Append("&");
|
---|
| 109 | stringBuilder.Append("((");
|
---|
[5745] | 110 | stringBuilder.Append(FormatRecursively(node.GetSubtree(i)));
|
---|
[5017] | 111 | stringBuilder.Append(")>0)");
|
---|
| 112 | }
|
---|
[7630] | 113 | stringBuilder.Append(")-0.5)*2");
|
---|
| 114 | // MATLAB maps false and true to 0 and 1, resp., we map this result to -1.0 and +1.0, resp.
|
---|
[5017] | 115 | } else if (symbol is Average) {
|
---|
| 116 | stringBuilder.Append("(1/");
|
---|
[6803] | 117 | stringBuilder.Append(node.SubtreeCount);
|
---|
[5017] | 118 | stringBuilder.Append(")*(");
|
---|
[6803] | 119 | for (int i = 0; i < node.SubtreeCount; i++) {
|
---|
[5017] | 120 | if (i > 0) stringBuilder.Append("+");
|
---|
| 121 | stringBuilder.Append("(");
|
---|
[5745] | 122 | stringBuilder.Append(FormatRecursively(node.GetSubtree(i)));
|
---|
[5017] | 123 | stringBuilder.Append(")");
|
---|
| 124 | }
|
---|
| 125 | stringBuilder.Append(")");
|
---|
| 126 | } else if (symbol is Constant) {
|
---|
| 127 | ConstantTreeNode constantTreeNode = node as ConstantTreeNode;
|
---|
[5431] | 128 | stringBuilder.Append(constantTreeNode.Value.ToString(CultureInfo.InvariantCulture));
|
---|
[5017] | 129 | } else if (symbol is Cosine) {
|
---|
| 130 | stringBuilder.Append("cos(");
|
---|
[5745] | 131 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
[5017] | 132 | stringBuilder.Append(")");
|
---|
| 133 | } else if (symbol is Division) {
|
---|
[6803] | 134 | if (node.SubtreeCount == 1) {
|
---|
[5017] | 135 | stringBuilder.Append("1/");
|
---|
[5745] | 136 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
[5017] | 137 | } else {
|
---|
[5745] | 138 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
[5017] | 139 | stringBuilder.Append("/(");
|
---|
[6803] | 140 | for (int i = 1; i < node.SubtreeCount; i++) {
|
---|
[5017] | 141 | if (i > 1) stringBuilder.Append("*");
|
---|
[5745] | 142 | stringBuilder.Append(FormatRecursively(node.GetSubtree(i)));
|
---|
[5017] | 143 | }
|
---|
| 144 | stringBuilder.Append(")");
|
---|
| 145 | }
|
---|
| 146 | } else if (symbol is Exponential) {
|
---|
| 147 | stringBuilder.Append("exp(");
|
---|
[5745] | 148 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
[5017] | 149 | stringBuilder.Append(")");
|
---|
[7695] | 150 | } else if (symbol is Square) {
|
---|
| 151 | stringBuilder.Append("(");
|
---|
| 152 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
| 153 | stringBuilder.Append(").^2");
|
---|
| 154 | } else if (symbol is SquareRoot) {
|
---|
| 155 | stringBuilder.Append("sqrt(");
|
---|
| 156 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
| 157 | stringBuilder.Append(")");
|
---|
[5017] | 158 | } else if (symbol is GreaterThan) {
|
---|
[5021] | 159 | stringBuilder.Append("((");
|
---|
[5745] | 160 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
[5017] | 161 | stringBuilder.Append(">");
|
---|
[5745] | 162 | stringBuilder.Append(FormatRecursively(node.GetSubtree(1)));
|
---|
[7630] | 163 | stringBuilder.Append(")-0.5)*2");
|
---|
| 164 | // MATLAB maps false and true to 0 and 1, resp., we map this result to -1.0 and +1.0, resp.
|
---|
[5017] | 165 | } else if (symbol is IfThenElse) {
|
---|
| 166 | stringBuilder.Append("(");
|
---|
[5745] | 167 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
[5017] | 168 | stringBuilder.Append(">0)*");
|
---|
[5745] | 169 | stringBuilder.Append(FormatRecursively(node.GetSubtree(1)));
|
---|
[5017] | 170 | stringBuilder.Append("+");
|
---|
| 171 | stringBuilder.Append("(");
|
---|
[5745] | 172 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
[5021] | 173 | stringBuilder.Append("<=0)*");
|
---|
[5745] | 174 | stringBuilder.Append(FormatRecursively(node.GetSubtree(2)));
|
---|
[5017] | 175 | } else if (symbol is LaggedVariable) {
|
---|
[5431] | 176 | // this if must be checked before if(symbol is LaggedVariable)
|
---|
[5017] | 177 | LaggedVariableTreeNode laggedVariableTreeNode = node as LaggedVariableTreeNode;
|
---|
[5431] | 178 | stringBuilder.Append(laggedVariableTreeNode.Weight.ToString(CultureInfo.InvariantCulture));
|
---|
[5017] | 179 | stringBuilder.Append("*");
|
---|
[7630] | 180 | stringBuilder.Append(laggedVariableTreeNode.VariableName +
|
---|
| 181 | LagToString(currentLag + laggedVariableTreeNode.Lag));
|
---|
[5017] | 182 | } else if (symbol is LessThan) {
|
---|
[5021] | 183 | stringBuilder.Append("((");
|
---|
[5745] | 184 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
[5017] | 185 | stringBuilder.Append("<");
|
---|
[5745] | 186 | stringBuilder.Append(FormatRecursively(node.GetSubtree(1)));
|
---|
[7630] | 187 | stringBuilder.Append(")-0.5)*2");
|
---|
| 188 | // MATLAB maps false and true to 0 and 1, resp., we map this result to -1.0 and +1.0, resp.
|
---|
[5017] | 189 | } else if (symbol is Logarithm) {
|
---|
[5022] | 190 | stringBuilder.Append("log_(");
|
---|
[5745] | 191 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
[5017] | 192 | stringBuilder.Append(")");
|
---|
| 193 | } else if (symbol is Multiplication) {
|
---|
[6803] | 194 | for (int i = 0; i < node.SubtreeCount; i++) {
|
---|
[5017] | 195 | if (i > 0) stringBuilder.Append("*");
|
---|
[5745] | 196 | stringBuilder.Append(FormatRecursively(node.GetSubtree(i)));
|
---|
[5017] | 197 | }
|
---|
| 198 | } else if (symbol is Not) {
|
---|
[5745] | 199 | stringBuilder.Append("~(");
|
---|
| 200 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
| 201 | stringBuilder.Append(" > 0 )");
|
---|
[5017] | 202 | } else if (symbol is Or) {
|
---|
[5021] | 203 | stringBuilder.Append("((");
|
---|
[6803] | 204 | for (int i = 0; i < node.SubtreeCount; i++) {
|
---|
[5017] | 205 | if (i > 0) stringBuilder.Append("|");
|
---|
| 206 | stringBuilder.Append("((");
|
---|
[5745] | 207 | stringBuilder.Append(FormatRecursively(node.GetSubtree(i)));
|
---|
[5017] | 208 | stringBuilder.Append(")>0)");
|
---|
| 209 | }
|
---|
[7630] | 210 | stringBuilder.Append(")-0.5)*2");
|
---|
| 211 | // MATLAB maps false and true to 0 and 1, resp., we map this result to -1.0 and +1.0, resp.
|
---|
[5017] | 212 | } else if (symbol is Sine) {
|
---|
| 213 | stringBuilder.Append("sin(");
|
---|
[5745] | 214 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
[5017] | 215 | stringBuilder.Append(")");
|
---|
| 216 | } else if (symbol is Subtraction) {
|
---|
[7653] | 217 | stringBuilder.Append("(");
|
---|
[6803] | 218 | if (node.SubtreeCount == 1) {
|
---|
[7653] | 219 | stringBuilder.Append("-");
|
---|
[5745] | 220 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
[5017] | 221 | } else {
|
---|
[5745] | 222 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
[6803] | 223 | for (int i = 1; i < node.SubtreeCount; i++) {
|
---|
[5017] | 224 | stringBuilder.Append("-");
|
---|
[5745] | 225 | stringBuilder.Append(FormatRecursively(node.GetSubtree(i)));
|
---|
[5017] | 226 | }
|
---|
| 227 | }
|
---|
[7653] | 228 | stringBuilder.Append(")");
|
---|
[5017] | 229 | } else if (symbol is Tangent) {
|
---|
| 230 | stringBuilder.Append("tan(");
|
---|
[5745] | 231 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
[5017] | 232 | stringBuilder.Append(")");
|
---|
[8122] | 233 | } else if (node.Symbol is AiryA) {
|
---|
| 234 | stringBuilder.Append("airy(");
|
---|
| 235 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
| 236 | stringBuilder.Append(")");
|
---|
| 237 | } else if (node.Symbol is AiryB) {
|
---|
| 238 | stringBuilder.Append("airy(2, ");
|
---|
| 239 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
| 240 | stringBuilder.Append(")");
|
---|
| 241 | } else if (node.Symbol is Bessel) {
|
---|
| 242 | stringBuilder.Append("besseli(0.0,");
|
---|
| 243 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
| 244 | stringBuilder.Append(")");
|
---|
| 245 | } else if (node.Symbol is CosineIntegral) {
|
---|
| 246 | stringBuilder.Append("cosint(");
|
---|
| 247 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
| 248 | stringBuilder.Append(")");
|
---|
| 249 | } else if (node.Symbol is Dawson) {
|
---|
| 250 | stringBuilder.Append("dawson(");
|
---|
| 251 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
| 252 | stringBuilder.Append(")");
|
---|
| 253 | } else if (node.Symbol is Erf) {
|
---|
| 254 | stringBuilder.Append("erf(");
|
---|
| 255 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
| 256 | stringBuilder.Append(")");
|
---|
| 257 | } else if (node.Symbol is ExponentialIntegralEi) {
|
---|
| 258 | stringBuilder.Append("expint(");
|
---|
| 259 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
| 260 | stringBuilder.Append(")");
|
---|
| 261 | } else if (node.Symbol is FresnelCosineIntegral) {
|
---|
| 262 | stringBuilder.Append("FresnelC(");
|
---|
| 263 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
| 264 | stringBuilder.Append(")");
|
---|
| 265 | } else if (node.Symbol is FresnelSineIntegral) {
|
---|
| 266 | stringBuilder.Append("FresnelS(");
|
---|
| 267 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
| 268 | stringBuilder.Append(")");
|
---|
| 269 | } else if (node.Symbol is Gamma) {
|
---|
| 270 | stringBuilder.Append("gamma(");
|
---|
| 271 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
| 272 | stringBuilder.Append(")");
|
---|
| 273 | } else if (node.Symbol is HyperbolicCosineIntegral) {
|
---|
| 274 | stringBuilder.Append("Chi(");
|
---|
| 275 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
| 276 | stringBuilder.Append(")");
|
---|
| 277 | } else if (node.Symbol is HyperbolicSineIntegral) {
|
---|
| 278 | stringBuilder.Append("Shi(");
|
---|
| 279 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
| 280 | stringBuilder.Append(")");
|
---|
| 281 | } else if (node.Symbol is Norm) {
|
---|
| 282 | stringBuilder.Append("normpdf(");
|
---|
| 283 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
| 284 | stringBuilder.Append(")");
|
---|
| 285 | } else if (node.Symbol is Psi) {
|
---|
| 286 | stringBuilder.Append("psi(");
|
---|
| 287 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
| 288 | stringBuilder.Append(")");
|
---|
| 289 | } else if (node.Symbol is SineIntegral) {
|
---|
| 290 | stringBuilder.Append("sinint(");
|
---|
| 291 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
| 292 | stringBuilder.Append(")");
|
---|
[5745] | 293 | } else if (symbol is HeuristicLab.Problems.DataAnalysis.Symbolic.Variable) {
|
---|
[5017] | 294 | VariableTreeNode variableTreeNode = node as VariableTreeNode;
|
---|
[5431] | 295 | stringBuilder.Append(variableTreeNode.Weight.ToString(CultureInfo.InvariantCulture));
|
---|
[5017] | 296 | stringBuilder.Append("*");
|
---|
[5431] | 297 | stringBuilder.Append(variableTreeNode.VariableName + LagToString(currentLag));
|
---|
| 298 | } else if (symbol is Power) {
|
---|
| 299 | stringBuilder.Append("(");
|
---|
[5745] | 300 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
[5431] | 301 | stringBuilder.Append(")^round(");
|
---|
[5745] | 302 | stringBuilder.Append(FormatRecursively(node.GetSubtree(1)));
|
---|
[5431] | 303 | stringBuilder.Append(")");
|
---|
| 304 | } else if (symbol is Root) {
|
---|
| 305 | stringBuilder.Append("(");
|
---|
[5745] | 306 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
[5431] | 307 | stringBuilder.Append(")^(1 / round(");
|
---|
[5745] | 308 | stringBuilder.Append(FormatRecursively(node.GetSubtree(1)));
|
---|
[5431] | 309 | stringBuilder.Append("))");
|
---|
| 310 | } else if (symbol is Derivative) {
|
---|
| 311 | stringBuilder.Append("fivePoint(");
|
---|
| 312 | // f0
|
---|
[5745] | 313 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
[5431] | 314 | stringBuilder.Append(", ");
|
---|
| 315 | // f1
|
---|
| 316 | currentLag--;
|
---|
[5745] | 317 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
[5431] | 318 | stringBuilder.Append(", ");
|
---|
| 319 | // f3
|
---|
| 320 | currentLag -= 2;
|
---|
[5745] | 321 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
[5431] | 322 | stringBuilder.Append(", ");
|
---|
| 323 | currentLag--;
|
---|
| 324 | // f4
|
---|
[5745] | 325 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
[5431] | 326 | stringBuilder.Append(")");
|
---|
| 327 | currentLag += 4;
|
---|
| 328 | } else if (symbol is Integral) {
|
---|
| 329 | var laggedNode = node as LaggedTreeNode;
|
---|
| 330 | string prevCounterVariable = CurrentIndexVariable;
|
---|
| 331 | string counterVariable = AllocateIndexVariable();
|
---|
[7630] | 332 | stringBuilder.AppendLine(" sum (map(@(" + counterVariable + ") " + FormatRecursively(node.GetSubtree(0)) +
|
---|
| 333 | ", (" + prevCounterVariable + "+" + laggedNode.Lag + "):" + prevCounterVariable +
|
---|
| 334 | "))");
|
---|
[5431] | 335 | ReleaseIndexVariable();
|
---|
| 336 | } else if (symbol is TimeLag) {
|
---|
| 337 | var laggedNode = node as LaggedTreeNode;
|
---|
| 338 | currentLag += laggedNode.Lag;
|
---|
[5745] | 339 | stringBuilder.Append(FormatRecursively(node.GetSubtree(0)));
|
---|
[5431] | 340 | currentLag -= laggedNode.Lag;
|
---|
[5019] | 341 | } else {
|
---|
[5017] | 342 | stringBuilder.Append("ERROR");
|
---|
| 343 | }
|
---|
| 344 | return stringBuilder.ToString();
|
---|
| 345 | }
|
---|
| 346 |
|
---|
[5431] | 347 |
|
---|
[7695] | 348 | private string LagToString(int lag) {
|
---|
[5431] | 349 | if (lag < 0) {
|
---|
| 350 | return "(" + CurrentIndexVariable + "" + lag + ")";
|
---|
| 351 | } else if (lag > 0) {
|
---|
| 352 | return "(" + CurrentIndexVariable + "+" + lag + ")";
|
---|
| 353 | } else return "(" + CurrentIndexVariable + ")";
|
---|
[5017] | 354 | }
|
---|
[5431] | 355 |
|
---|
[5017] | 356 | }
|
---|
| 357 | }
|
---|